On the upgrade planner, I see 12.4.19 as LD, where did you see it as GD?
With regard to the question of what version of 12.4 to use, I believe under new mainline IOS release rules, which I haven't seen published, 12.4 mainline is being treated much as other non-mainline software trains have been. I.e., features can be added to later numerical releases, e.g. (19) could have new hardware or software features not in (12), but letter suffixes should(?) be just bug fixes, e.g. (18) vs. (18b), although they might not be all inclusive.
Just the other day, I discovered a router upgraded to 12.4.19 wouldn't display policy map interface stats where prior versions of 12.4 do, including (3j) and (18b).
So the moral of all this might be to be very careful in upgrade choices within 12.4. For instance, if not already, you might want to look at the latest (12), (12c), and see if this also addresses the bug you're concerned about. Likewise, even consider moving "back" to something like (3j) hoping for stability if later release features are unnecessary.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...